farfli | c94f634db1948dc3784022a6e05ec909b87b90e4e49242e25d002bf38ee382a8

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
19/08/2026, 07:51

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General

Target
2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe
Size 155KB
Sample260819-jqb89afq21
SHA256 c94f634db1948dc3784022a6e05ec909b87b90e4e49242e25d002bf38ee382a8
MD5 cdbd4fc7645b90a5caf63ac453bb1def
SHA1 62b8d8d4441398e6c9de7b6119b6bad50591be09
SHA512 192abeef2c3a95b5923e90708dfe813552b63bbd841fec24332cd94ce4d3a1d9000f38d4220b0a5750dead8d2e75b0eb9fb865288f6253cf42655a017b8bd59d
SSDEEP 1536:B3aacz2htqkUla/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJny3GM+9qKvM:Ua/qc9rqzMseNoVv9EJFnM8qKvM
TLSH
T115F3280267F6C194F0B31E34DA3646F08BA6BC59FA70922B13847E4EBD31A15ED21776
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli persistence spyware stealer upx

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral1/memory/3276-11-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli
behavioral1/memory/3276-12-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli
behavioral1/memory/3276-13-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 1 IoCs

resource	yara_rule
behavioral1/memory/3276-12-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/468-0-0x0000000000400000-0x0000000000423000-memory.dmp	UPX
behavioral1/memory/468-2-0x0000000000400000-0x0000000000423000-memory.dmp	UPX
behavioral1/files/0x001800000001db66-4.dat	UPX
behavioral1/memory/3984-7-0x0000000000400000-0x0000000000423000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
12	3276	rundll32.exe
17	3276	rundll32.exe
18	3276	rundll32.exe
19	3276	rundll32.exe
30	3276	rundll32.exe
32	3276	rundll32.exe
40	3276	rundll32.exe
49	3276	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3984	edago.exe

Executes dropped EXE 1 IoCs

pid	Process
3984	edago.exe

Loads dropped DLL 1 IoCs

pid	Process
3276	rundll32.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2937465464-4167303362-2236413517-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\evjbijpgy\\bcmyhjrm.dll\",init"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/468-0-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral1/memory/468-2-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral1/files/0x001800000001db66-4.dat	upx
behavioral1/memory/3984-7-0x0000000000400000-0x0000000000423000-memory.dmp	upx

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
380	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edago.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
380	cmd.exe
2596	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2596	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3276	rundll32.exe
3276	rundll32.exe
3276	rundll32.exe
3276	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3276	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
468	2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe
3984	edago.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 380	468	2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe	84
PID 380 wrote to memory of 2596	380	cmd.exe	86
PID 380 wrote to memory of 3984	380	cmd.exe	88
PID 3984 wrote to memory of 3276	3984	edago.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\edago.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:380
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2596
- - \??\c:\edago.exe
    c:\edago.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-19_cdbd4fc7645b90a5caf63ac453bb1def_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3984
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\evjbijpgy\bcmyhjrm.dll",init c:\edago.exe
      4⤵
      Badlisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3276

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

edago.exe

Path C:\edago.exe
Size 155KB
SHA256 6ffe4246b06e63aa64cf9800180b389bdba2fb307a28132db1f8902e99c7ad97
MD5 24a90d39a3ed653fbc543136bbf6b2fa
SHA1 22d5430e0455a16a349e9671fe16a8333280bf31
SHA512 2355375dec3ee63376f427e6d63601c556f6f1375ecfaec3678b8522c7aeb31c5958ead7d1bccf23ef1473b35e981f795863d2f90dfa13c9df74c5925f6e7b49
SSDEEP 1536:B3aacz2htqkUla/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJny3GM+9qKvm:Ua/qc9rqzMseNoVv9EJFnM8qKvm
TLSH
T1DEF3380267F6C194F0B31E34DA2646F08BA6BC59FA70922B13847E4FBD31A15ED21776
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

bcmyhjrm.dll

Path \??\c:\evjbijpgy\bcmyhjrm.dll
Size 50KB
SHA256 a632527bcd457c9a4cfce83e7a9a675baff790b0279de5d8ea3192dfb2dd888a
MD5 ab32c5bfd7ecfbe9ed733dfb81210933
SHA1 4d5c6e7a0031691f12e78b096ff928b0d55bdfab
SHA512 59b971146292074d76d23d5f26889108f4d6e33804332449f4c589bf8a8d53e37ac8dfea47e9d3c5ae0f382ae1acf25c4968bea87b3f5ff9d51f2274229c1ab5
SSDEEP 1536:mrrG57ZqLLpf+Xz+HOtygmRnO/x5Rq8Gm:mwKGqutWM/x281
TLSH
T12033F1F4EFB4E067ECBA5F743E6A6215DA727B10C63188EA518090135F335CACA18717
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/468-0-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/468-2-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/3276-11-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/3276-10-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3276-12-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3276-13-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/3984-7-0x0000000000400000-0x0000000000423000-memory.dmp

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